70 



A. OKA. 



Eemaeks. Although it is highly probable that this medusa re- 

 presents a still unnamed species, I have preferred to leave it undermined 

 for a while, the literature at my disposal at present being too scanty for 

 that purpose. Should it prove to be a new species the name of 

 LiLcernaria nagatensis will, in my opinion, be the most appropriate 

 for it. 



The Japanese name which I propose for this medusa is jumonji- 

 hurage {jumonji cross, kiirage medusa ; medusa having the shape of a 

 cross). 



Yamaguchi, January 1st, 1897. 



Explanation of Plate. 



Coelonteric cavity 

 Entoderm. 

 Genital glands. 

 Opening in the Septum. 



''ji- The left half is represented as passing 

 through the Interradius ; the right half, through the Adradius. 

 Figs 6, 7, 8. Cross-sections of an arm. ^^/j. 



-Cl.S^^^Xg'^JO^' 



